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I aim to find out if the temperature affects the rate at which the sodium thiosulphate (Na2S2O3) reacts with Hydrochloric acid (HCl).
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Rates of Reaction Coursework Planning Aim I aim to find out if the temperature affects the rate at which the sodium thiosulphate (Na2S2O3) reacts with Hydrochloric acid (HCl). The input variable will be the temperature and the output variable will be the rate at which the reaction takes place. Theory When gases or liquids are heated the particles gain kinetic energy and move faster (see diagrams below). * The increased speed increases the chance of collision between reactant molecules and the rate increases. * However this is not the main reason for the increased reaction speed. * Most molecular collisions do not result in chemical change. * Before any change takes place on collision, the colliding molecules must have a minimum kinetic energy called the Activation Energy shown on the energy level diagrams below. * Going up and to top 'hump' represents bond breaking on reacting particle collision. * The purple arrow up represents this...
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